src/java.base/share/classes/java/lang/Long.java

rev 52979 : 8215281: Use String.isEmpty() when applicable in java.base
Reviewed-by: TBD

*** 1246,1256 ****
          int radix = 10;
          int index = 0;
          boolean negative = false;
          Long result;
  
!         if (nm.length() == 0)
              throw new NumberFormatException("Zero length string");
          char firstChar = nm.charAt(0);
          // Handle sign, if present
          if (firstChar == '-') {
              negative = true;
--- 1246,1256 ----
          int radix = 10;
          int index = 0;
          boolean negative = false;
          Long result;
  
!         if (nm.isEmpty())
              throw new NumberFormatException("Zero length string");
          char firstChar = nm.charAt(0);
          // Handle sign, if present
          if (firstChar == '-') {
              negative = true;